Rheological properties of washing emulsions for gas cooling systems

Emulsion based on coal tar is used to wash the gas channel in the primary gas-cooling system. That reduces the hydraulic drag and improves the heat transfer. In addition, by regulating the composition of the emulsion, the removal of naphthalene from coke-oven gas may be enhanced. For water-in-tar em...

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Bibliographic Details
Published in:	Coke and chemistry (New York, N.Y.) Vol. 58; no. 8; pp. 303 - 307
Main Authors:	Bannikov, L. P., Pasternak, A. A., Pokhylko, A. V., Pilipenko, V. I.
Format:	Journal Article
Language:	English
Published:	New York Allerton Press 01-08-2015
Subjects:	Chemistry Chemistry and Materials Science Industrial Chemistry/Chemical Engineering coal-tar emulsions primary gas-cooling system Brookfield apparent viscosity
Online Access:	Get full text
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Summary:	Emulsion based on coal tar is used to wash the gas channel in the primary gas-cooling system. That reduces the hydraulic drag and improves the heat transfer. In addition, by regulating the composition of the emulsion, the removal of naphthalene from coke-oven gas may be enhanced. For water-in-tar emulsion, increasing the water content impairs the rheological properties, especially below 50°C. The dependence of the viscosity on the water content for water-in-tar emulsion may be regarded as exponential (correlation coefficient 0.80–0.85). From that perspective, tar-in-water emulsion is preferable. However, the solubility of naphthalene and tars in the emulsion and its corrosive activity must be taken into account here.
ISSN:	1068-364X 1934-8398
DOI:	10.3103/S1068364X15080025